?? imagecanvas.java
字號:
package com.j2medev.chapter3.image;
import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;
public class ImageCanvas extends Canvas{
private Image src = null;
public ImageCanvas(Image img) {
this.src = img;
}
public void paint(Graphics g){
//清除背景
int color = g.getColor();
g.setColor(0xFFFFFF);
g.fillRect(0,0, getWidth(),getHeight());
g.setColor(color);
if(src != null){
g.drawImage(src, getWidth()/2,getHeight()/2, Graphics.VCENTER|Graphics.HCENTER);
}
}
}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -